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3 years ago

11

PLEASE HELP I'M DESPERATE <3

2 answers:

Iteru [2.4K]3 years ago

6 0

Start by simplifying all complex terms (anything term that can be broken down into an easier thing to work with). 4^2 is equal to 4x4 or 16, and the square root of 25 is 5. Now we have an expression that looks like this:

16-25x2

Using PEMDAS, we continue simplifying by multiplying 5 and two together, and then subtracting this from 16.

16-5x2
16-10
6

The value of this expression is 6.

Tomtit [17]3 years ago

5 0

4 squared = 16
Square root of 25 = 5
Equation = 16-5x2
Do 5x2 first because of order of operations
16-10 = 6

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A sequence is defined by the recursive formula f(n+1)=f(n)-2. If f(1)=18, what is f(5)?

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$f(5)=10$

Step-by-step explanation:

A sequence is defined by the recursive formula $f(n+1)=f(n)-2$

If $f(1)=18,$ then

for $n=1: f(2)=f(1+1)=f(1)-2=18-2=16$

for $n=2: f(3)=f(2+1)=f(2)-2=16-2=14$

for $n=3: f(4)=f(3+1)=f(3)-2=14-2=12$

for $n=4: f(5)=f(4+1)=f(4)-2=12-2=10$

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3 years ago

How could you solve for x in the problem 3x+7=-x-1

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$3x+7=-x-1\\$

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓

First you had to subtract by 7 from both sides of the equation.

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Hope this helps!

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Have a great day!

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3 years ago